/*
 * DBeaver - Universal Database Manager
 * Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jkiss.dbeaver.ext.oracle.data;

import org.jkiss.code.NotNull;
import org.jkiss.dbeaver.model.DBPDataSource;
import org.jkiss.dbeaver.model.data.DBDContent;
import org.jkiss.dbeaver.model.exec.DBCException;
import org.jkiss.dbeaver.model.impl.jdbc.data.handlers.JDBCContentValueHandler;
import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
import org.jkiss.dbeaver.model.struct.DBSTypedObject;

import java.io.IOException;
import java.io.Writer;

/**
 * CLOB handler
 */
public class OracleBLOBValueHandler extends JDBCContentValueHandler {

    public static final OracleBLOBValueHandler INSTANCE = new OracleBLOBValueHandler();

    @Override
    public void writeStreamValue(DBRProgressMonitor monitor, @NotNull DBPDataSource dataSource, @NotNull DBSTypedObject type, @NotNull DBDContent object, @NotNull Writer writer) throws DBCException, IOException {
        if (!object.isNull()) {
            writer.write("HEXTORAW('");
        }
        super.writeStreamValue(monitor, dataSource, type, object, writer);
        if (!object.isNull()) {
            writer.write("')");
        }
    }
}
